they say their investigation has led them to china. according to that report, this building is where the chinese military essentially set up shot. we'll get reaction from the white house. >>> plus, first lady michelle obama -- well, she is finally explaining, not that she has to, but she's explaining the motivation for her new hairstyle. the huffington post called total shock to the system. >> i couldn't get a sports car. they won't let me bungee jump. so, instead, i cut my bangs here. >> so you went for the bangs? >>> time for "your business" entrepreneur of the week. joanne and christy created decorations for the school lockers when others wanted to buy them, too, they created locker looks. for more, watch "your business" sunday mornings at 7:30 on msnbc. i'm only in my 60's... i've got a nice long life ahead. big plans. so when i found out medicare doesn't pay all my medical expenses, i got a medicare supplement insurance plan. [ male announcer ] if you're eligible for medicare, you may know it only covers about 80% of your part b m